Apple tree named &#39;Cauflight&#39;

ABSTRACT

A new apple tree named ‘Cauflight’ is described. ‘Cauflight’ is a mutation of ‘Caudle’ selected for its fruit, which has an intense bright red over color as compared to ‘Caudle.’

CROSS REFERENCE TO RELATED APPLICATIONS

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PRIORITY CLAIM

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STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

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LATIN NAME

Malus domestica borkh.

VARIETY DENOMINATION

‘Cauflight’

BACKGROUND OF THE VARIETY

‘Cauflight’ is a new and distinct cultivar of apple tree Malus domestica Borkh. This new cultivar is a product of natural branch tree mutation of the variety ‘Caudle’ (U.S. Plant Pat. No. 9,068) discovered at Flightshott Farm, Kent, United Kingdom. ‘Cauflight’ is well characterized by its well defined dark red stripes over a bright red color. It is also characterized by its high percentage of colored fruits. Fruit was first observed in 2000, in an orchard situated at Flightshoot Farm in Kent, United Kingdom. Trees have since been propagated by budding in two different locations: Seiches sur le Loir, France and Villers-Cotterêts, France. The variety has been shown to remain true to type over successive generations in these two locations.

BRIEF DESCRIPTION OF THE VARIETY

‘Cauflight’ apple tree is similar to ‘Caudle’ in many respects, but is particularly distinguishable by its fruit, which has a bright red over color and a high percentage of highly colored fruit, particularly inside the tree (see FIG. 3). This characteristic of ‘Cauflight’ is desireable in that it leads to improved pack-out volumes as compared to ‘Caudle’ (see FIG. 5). The distinctive characteristics of ‘Cauflight’ are shown in Table 1 below.

TABLE 1 Comparison between ‘Caudle’ and ‘Cauflight’ fruits. Amount of Pattern of Variety Skin color Overcolor Overcolor Caudle Light red 50-75% Strongly defined (RHS 41A) stripes Cauflight Bright red 80-100% Strongly defined (RHS 45A) stripes

Tests have been conducted at Station Expérimentale de la Morinière, France, to compare ‘Cauflight’ and ‘Caudle’ at harvest time and after storage. Fruit taken from 4 year old trees were stored in controlled atmosphere: 0.5° C., 2.5% oxygen and 2% CO₂. Starch reversion, sugars, firmness and acidity were measured at harvest time and after storage. Results of these storage trials show that there is no significant difference in maturity between ‘Caudle’ and ‘Cauflight’ at harvest time. After storage, however, results show that level of sugar is higher for ‘Cauflight’. These results are shown in Tables 2 and 3.

TABLE 2 Characteristics of ‘Caudle’ and ‘Cauflight’ at harvest time. Starch reversion Sugar Firmness Acidity Variety (CTIFL code 1-10) (% Brix) (kg/cm²) (g/l) ‘Caudle’ 5.95 14.7 7.6 4.7 ‘Cauflight’ 6.33 14.6 7.55 4.8

TABLE 3 Characteristics of ‘Caudle’ and ‘Cauflight’ after 6 month CA storage. Firmness Sugars (kg/cm²) (% Brix) Acidity (g/l) After 24 After 8 After 24 After 8 After 24 After 8 Variety hours days hours days hours days ‘Caudle’ 6.6 6.0 14.8 14.5 3.3 3.0 ‘Cauflight’ 6.5 5.9 15.6 15.5 3.3 2.9

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

FIG. 1 shows fruit of ‘Cauflight’;

FIG. 2 shows ‘Cauflight’ tree (left) and ‘Caudle’ tree (right), 3 weeks before picking time;

FIG. 3 shows ‘Cauflight’ fruit (above) and ‘Caudle’ fruit (below) on tree at picking time;

FIG. 4 shows ‘Cauflight’ fruit (left) and ‘Caudle’ fruit (right) at picking time;

FIG. 5 shows a box of ‘Cauflight’ fruit (right) in comparison with box of ‘Caudle’ fruit (left); and

FIG. 6 shows leaves of ‘Cauflight’.

DETAILED BOTANICAL DESCRIPTION OF THE VARIETY

The following detailed botanical description is based on observations made during the 2007 growing season at Seiches sur le Loir, France of six year old trees grown on Pajam 2 rootstock in high density plantings. All colors are described according to The Royal Horticultural Society Color Chart. It should be understood that the characteristics described will vary somewhat depending upon cultural practices and climatic conditions, and will vary with location and season. Quantified measurements are expressed as an average of measurements taken from a number of individual plants of the new variety. The measurements of any individual plant or any group of plants, of the new variety may vary from the stated average.

-   Tree: Vigor — medium (similar to ‘Caudle’); Type — ramified; Habit —     spreading; Height — 2.50 m; Trunk diameter (at 30cm above the graft)     — medium (avg. 45 mm), Bark texture — smooth to medium; Bark     coloration — grey 187D. -   Branch (fruiting branches located at about 1 m above the graft     union): Length — medium (avg. 88 cm); Diameter — medium (avg. 12     mm); Crotch angle 80° to 90°; Bark color — purple-brown 166A. length     — medium (avg. 31 mm); Pubescence — medium; Number of lenticels —     medium to high (12 lenticels per cm²). -   Flower buds: Quantity per spur — 1 to 3; Shape — round to conical;     Length — small to medium; Diameter — small to medium; Color — pink     63B. -   Flowers: Color (flower buds) — pink 63B; Diameter of open flower —     medium; Relative position of petal margin — overlapping; Number per     cluster — 5 to 6; Date of first bloom — April 20 in Loire Valley,     France (same as ‘Golden Delicious’); Date of full bloom — April 25     in Loire Valley, France. -   Petals: Number per flower — 5; Shape — ovoid; Length — medium; Width     — medium; Apex — round; Base — conical-pointed; Margin — smooth;     Coloration of upper surface — white N155C; Coloration of lower     surface — light pink 65B. -   Pistils: Size — medium; Color — yellow green N144C. -   Stigma: Size — medium; Color — yellow green 150B. -   Style: Size — medium; Color — yellow green 145A. -   Ovary: Size — medium; Color — green 140A. -   Anthers: Quantity — numerous; Size — medium; Presence of pollen —     present; Color of pollen — yellow 3C. -   Pedicel: Size — medium to long; Diameter — thin; Color — green 143B. -   Sepals: Quantity — 5; Coloration — green 143C; Shape — conical     pointed. -   Leaves: Shape — obtuse; Length (petiole not included) — medium-long     (avg. 92 mm); Width — large (avg. 55 mm); Length/width ratio —     medium (1.67); Blade margin — serrate; Apex — acuminate; Base shape     — oblique; Color of upper surface — dark green 136A (in late     summer); Color of lower surface — green 137C (in late summer);     Attitude in relation to shoot — outwards. -   Petiole: Length — long (avg. 33 mm); Diameter — medium (avg. 1.3     mm); Coloration — green 137C. -   Fruit: Quantity per cluster — (2 to 3); Diameter — large (avg. 87     mm); Weight — heavy (avg. 250 g); Ratio of height to width — medium     (1.06); General shape in profile — rounded to conical; Position of     maximum diameter — in middle; Ribbing — medium; Crowning at calyx     end — strong; Size of eye — large (avg. 21.3 mm); Aperture of eye —     partially open; Length of sepal — medium (avg. 6 mm); Bloom of skin     — weak; Greasiness of skin — very weak; Background color of skin —     yellow 7D; Over color of skin — red 45A; Amount of over color — 80%     to 100%; Intensity of over color — strong ; Pattern of over color —     solid stripes with flush; Amount of russet around stalk cavity —     low; Amount of russet on cheeks — absent; Area of russet around eye     basin — absent or very weak; Length of stalk — long (avg. 32.8 mm);     Thickness of stalk — medium to large (avg. 2.4 mm); Depth of stalk     cavity — deep (avg. 21.4 mm); Width of stalk cavity — medium (avg.     26.4 mm); Depth of eye basin — medium (avg.13.4 mm); Width of eye     basin — medium (avg. 23 mm); Firmness of flesh — firm; Flesh texture     — medium to fine; Aroma — moderately aromatic and sweet; Juiciness —     medium to high; Brix — 12° brix minimum at harvest time; Flesh     coloration — light yellow 4D; Stem coloration — brown 199A. -   Seeds: Quantity per fruit — 5 on average; Shape — truncate ovoid;     Coloration — dark brown 165A. -   Harvest: Time for harvest — late, beginning of October (similar to     Braeburn); Number of picks — three picks; Amount of fruit produced     per tree per harvest — 120 fruits on fifth-leaf trees. 

1. A new and distinct apple tree substantially as described and illustrated herein. 